EP 2803839 A4 20150902 - SCROLL STRUCTURE OF TURBINE HOUSING
Title (en)
SCROLL STRUCTURE OF TURBINE HOUSING
Title (de)
RADIALSCHNECKENSTRUKTUR FÜR EIN TURBINENGEHÄUSE
Title (fr)
STRUCTURE DE TYPE CAVITÉ D'UN BOÎTIER DE TURBINE
Publication
Application
Priority
- JP 2012002756 A 20120111
- JP 2012076173 W 20121010
Abstract (en)
[origin: US2014294577A1] An object of the invention is to provide a scroll structure of a turbine housing of a twin scroll turbocharger of which flow-through abilities of two exhaust gas passages are equal to each other. A tongue (44), which partitions a scroll portion (26) into an outer peripheral portion (26a) and an inner peripheral portion (26b) in a longitudinal section parallel to a flow direction of an exhaust gas, is formed at the turbine housing (32), the tongue (44) includes a front-side tongue (46) and a rear-side tongue (48) that respectively close the two exhaust gas passages at the outer peripheral portion (26a) in a cross-section, and respective inner sides (46a, 48a) of the front-side tongue (46) and the rear-side tongue (48) and respective minimal outflow width portions (56a, 58a) of a front-side passage (22) and a rear-side passage (24) are formed substantially parallel to each other in the cross-section at a downstream end of the outer peripheral portion (26a).
IPC 8 full level
F01D 9/02 (2006.01); F02B 37/02 (2006.01); F02C 6/12 (2006.01)
CPC (source: EP US)
F01D 9/026 (2013.01 - EP US); F02C 6/12 (2013.01 - EP US); F04D 29/403 (2013.01 - US); F02B 37/025 (2013.01 - EP US); F05D 2220/40 (2013.01 - EP US)
Citation (search report)
- [XY] JP S63140 U 19880105
- [Y] JP H0166433 U 19890427
- See references of WO 2013105316A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2014294577 A1 20141002; US 9874222 B2 20180123; CN 103874835 A 20140618; CN 103874835 B 20160330; EP 2803839 A1 20141119; EP 2803839 A4 20150902; EP 2803839 B1 20200115; JP 2013142324 A 20130722; JP 5964056 B2 20160803; WO 2013105316 A1 20130718
DOCDB simple family (application)
US 201214350494 A 20121010; CN 201280049585 A 20121010; EP 12864916 A 20121010; JP 2012002756 A 20120111; JP 2012076173 W 20121010